Magnetic refrigerating portable refrigerator and refrigeration method

Abstract

The invention discloses a magnetic refrigerating portable refrigerator and a refrigeration method. The magnetic refrigerating portable refrigerator belongs to the field of domestic electrical appliances and comprises a shell, a storage box arranged in the shell, a permanent magnet group, a magnetic working medium and the like, wherein the permanent magnet group is a tube-shaped body the centre of which is provided with a through hole; and the magnetic working medium is provided with multiple through holes and is closely sleeved in a magnetic working medium shell with a concave slideway. The function of the magnetic refrigeration portable refrigerator is realized by that the magnetic working medium is fixed, straight guide rails drive the permanent magnet to do a reciprocating straight motion relatively to the magnetic working medium, and the magnetic working medium realizes an excitation and demagnetizing process, so that the refrigeration of the refrigerator is realized; the relative movement method of the magnetic working medium and the permanent magnet is simple to operate, relatively stable in motion, and easy to control in the realizing manner; the structure of the magnetic working medium solves the problems that the filling materials is difficult to process and manufacture, and gaps among the filling materials are difficult to guarantee and the like; and a permanent magnet is simple in structure and convenient to process, so that the non-waste processing is realized, and the processing and manufacturing cost is greatly saved.

Description

technical field [0001] The invention belongs to the field of household appliances, and in particular relates to a magnetic refrigeration portable refrigerator and a refrigeration method. Background technique [0002] Refrigerator plays an important role in people's daily life, and its use has basically spread to every ordinary family. [0003] Traditional household refrigerators are refrigerated by using compressors to repeatedly compress and expand gas or liquid refrigerants. If the refrigerants used are freon and other polluting gases, their leakage will also have a huge impact on the environment. When the compressor is working It has high noise, and there are many mechanical parts involved in the compression cycle system, which are easy to be damaged. For this reason, magnetic refrigeration refrigerators have been made using magnetic refrigeration technology. In existing magnetic refrigeration refrigerators, the cooling effect of the refrigerator is obtained mainly thro...

AI Technical Summary

Problems solved by technology

This type of magnetic refrigeration refrigerator has a complex movement structure and requires a large space, so it is mainly concentrated in large-scale refrigeration prototypes

At the same time, the magnetic working fluid turntable that rotates in and out of the magnetic field is mostly composed of a packed bed of granular magnetic refrigeration materials. The particle diameter of the magnetic refrigeration filling material is small and difficult to fill.

The shape and structure of the permanent magnet that provides a strong magnetic field is relatively complex, and the magnetization direction is irregular, which makes it difficult to process the permanent magnet and leaves a lot of leftover material, which is not conducive to making full use of the permanent magnet material

The movement structure of the magnetic working medium and the permanent magnet is relatively complicated, and a large gap needs to be left, which will cause a large magnetic leakage, which will affect the cooling effect of the magnetic refrigeration ring, and the magnetic shielding measures of the permanent magnet are lacking, which will cause magnetic field leakage. Phenomenon, which produces magnetic interference to other parts except permanent magnets, which is not conducive to the movement of the overall structure of the magnetic refrigeration refrigerator

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